/*
 * Copyright 2004-2005 The Apache Software Foundation or its licensors,
 *                     as applicable.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.jackrabbit.decorator;

import javax.jcr.Credentials;
import javax.jcr.LoginException;
import javax.jcr.NoSuchWorkspaceException;
import javax.jcr.Repository;
import javax.jcr.RepositoryException;
import javax.jcr.Session;

/**
 * Simple {@link Repository Repository} decorator.
 */
public class RepositoryDecorator implements Repository {

    private DecoratorFactory factory;

    private Repository repository;

    public RepositoryDecorator(
            DecoratorFactory factory, Repository repository) {
        this.factory = factory;
        this.repository = repository;
    }

    /**
     * Forwards the method call to the underlying repository.
     */
    public String[] getDescriptorKeys() {
        return repository.getDescriptorKeys();
    }

    /**
     * Forwards the method call to the underlying repository.
     */
    public String getDescriptor(String key) {
        return repository.getDescriptor(key);
    }

    /**
     * Forwards the method call to the underlying repository. The returned
     * session is wrapped into a session decorator using the decorator factory.
     *
     * @return decorated session
     */
    public Session login(Credentials credentials, String workspaceName) throws
            LoginException, NoSuchWorkspaceException, RepositoryException {
        Session session = repository.login(credentials, workspaceName);
        return factory.getSessionDecorator(this, session); 
    }

    /**
     * Calls <code>login(credentials, null)</code>.
     *
     * @return decorated session
     * @see #login(Credentials, String)
     */
    public Session login(Credentials credentials) throws LoginException,
            NoSuchWorkspaceException, RepositoryException {
        return login(credentials, null);
    }

    /**
     * Calls <code>login(null, workspaceName)</code>.
     *
     * @return decorated session
     * @see #login(Credentials, String)
     */
    public Session login(String workspaceName) throws LoginException,
            NoSuchWorkspaceException, RepositoryException {
        return login(null, workspaceName);
    }

    /**
     * Calls <code>login(null, null)</code>.
     *
     * @return decorated session
     * @see #login(Credentials, String)
     */
    public Session login() throws LoginException, NoSuchWorkspaceException,
            RepositoryException {
        return login(null, null);
    }

}
